Washington: Researchers are working on an automatic car charging system that would slithers from the wall on its own and connect to a Model S like 'solid metal snake.'

Elon Musk said that Tesla has been working on the project that would work with all existing Model S vehicles on the road; however, it's not clear whether such a system would be designed for Supercharging stations, home use, or both, the Verge reported.

Musk had joked that he'd like to see such a system back at the launch of the P85D in October. At that same event, Tesla had talked about autonomous driving hardware that had recently been integrated into the Model S; one new feature was an automatic, electrically actuated charger port door.